Whenever one or more creatures you control attack, each defending player divides all creatures without flying they control into a "left" pile and a "right" pile. Then, for each attacking creature you control, choose "left" or "right." That creature can't be blocked this combat except by creatures with flying and creatures in a pile with the chosen label.
![Raging River [Beta Edition] | Silver Goblin](http://silvergoblin.cards/cdn/shop/products/f53cf5e0-435e-553f-88a4-51ac635aa009.jpg?v=1707110176)
